update:调整数据类型，删除逻辑

feat:sout在log文件中显示

src/main/java/cn/hellohao/config/PoolConfig.java

@@ -0,0 +1,52 @@
+package cn.hellohao.config;
+
+import lombok.Data;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.scheduling.annotation.EnableAsync;
+import org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor;
+
+import java.util.concurrent.ThreadPoolExecutor;
+
+//线程池
+@Configuration
+@EnableAsync
+public class PoolConfig {
+    ThreadPoolProperties properties = new ThreadPoolProperties();
+    @Bean(name = "taskExecutor")
+    public ThreadPoolTaskExecutor taskExecutor() {
+        ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor();
+        executor.setCorePoolSize(properties.getCorePoolSize());
+        executor.setMaxPoolSize(properties.getMaxPoolSize());
+        executor.setQueueCapacity(properties.getQueueCapacity());
+        executor.setThreadNamePrefix(properties.getThreadNamePrefix());
+        executor.setKeepAliveSeconds(properties.getKeepAliveTime());
+        executor.setWaitForTasksToCompleteOnShutdown(properties.isWaitForTasksToCompleteOnShutdown());
+        executor.setAwaitTerminationSeconds(properties.getAwaitTerminationSeconds());
+        // 设置任务拒绝策略
+        /**
+         * 4种
+         * ThreadPoolExecutor类有几个内部实现类来处理这类情况：
+         - AbortPolicy 丢弃任务，抛RejectedExecutionException
+         - CallerRunsPolicy 由该线程调用线程运行。直接调用Runnable的run方法运行。
+         - DiscardPolicy  抛弃策略，直接丢弃这个新提交的任务
+         - DiscardOldestPolicy 抛弃旧任务策略，从队列中踢出最先进入队列（最后一个执行）的任务
+         * 实现RejectedExecutionHandler接口，可自定义处理器
+         */
+        executor.setRejectedExecutionHandler(new ThreadPoolExecutor.CallerRunsPolicy());
+        return executor;
+    }
+
+    @Data
+    class ThreadPoolProperties {
+        private int corePoolSize = 5;
+        private int maxPoolSize = 50;
+        private int keepAliveTime = 15;
+        private int queueCapacity = 6;
+        private String threadNamePrefix = "Tbed-Thread";
+        private boolean allowCoreThreadTimeout = false;
+        private boolean waitForTasksToCompleteOnShutdown = false;
+        private int awaitTerminationSeconds;
+
+    }
+}